integration test: initial commit of integration test framework

The adds in end-to-end testing of cloud-init. The framework utilizes
LXD and cloud images as a backend to test user-data passed in.
Arbitrary data is then captured from predefined commands specified
by the user. After collection, data verification is completed by
running a series of Python unit tests against the collected data.

Currently only the Ubuntu Trusty, Xenial, Yakkety, and Zesty
releases are supported. Test cases for 50% of the modules is
complete and available.

Additionally a Read the Docs file was created to guide test
writing and execution.

1 files changed, 30 insertions, 0 deletions

diff --git a/tests/cloud_tests/testcases/modules/write_files.py b/tests/cloud_tests/testcases/modules/write_files.py
new file mode 100644
index 00000000..97dfeec3
--- /dev/null
+++ b/tests/cloud_tests/testcases/modules/write_files.py
@@ -0,0 +1,30 @@
+# This file is part of cloud-init. See LICENSE file for license information.
+
+"""cloud-init Integration Test Verify Script"""
+from tests.cloud_tests.testcases import base
+
+
+class TestWriteFiles(base.CloudTestCase):
+    """Example cloud-config test"""
+
+    def test_b64(self):
+        """Test b64 encoded file reads as ascii"""
+        out = self.get_data_file('file_b64')
+        self.assertIn('ASCII text', out)
+
+    def test_binary(self):
+        """Test binary file reads as executable"""
+        out = self.get_data_file('file_binary')
+        self.assertIn('ELF 64-bit LSB executable, x86-64, version 1', out)
+
+    def test_gzip(self):
+        """Test gzip file shows up as a shell script"""
+        out = self.get_data_file('file_gzip')
+        self.assertIn('POSIX shell script, ASCII text executable', out)
+
+    def test_text(self):
+        """Test text shows up as ASCII text"""
+        out = self.get_data_file('file_text')
+        self.assertIn('ASCII text', out)
+
+# vi: ts=4 expandtab